devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/ui/menu/ui.menu.js)
* Version: 21.1.4
* Build date: Mon Jun 21 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import $ from "../../core/renderer";
import eventsEngine from "../../events/core/events_engine";
import registerComponent from "../../core/component_registrator";
import {
noop
} from "../../core/utils/common";
import {
getPublicElement
} from "../../core/element";
import {
each
} from "../../core/utils/iterator";
import {
isPlainObject,
isObject,
isDefined
} from "../../core/utils/type";
import {
extend
} from "../../core/utils/extend";
import {
getElementMaxHeightByWindow
} from "../overlay/utils";
import {
addNamespace
} from "../../events/utils/index";
import pointerEvents from "../../events/pointer";
import {
end as hoverEventEnd
} from "../../events/hover";
import MenuBase from "../context_menu/ui.menu_base";
import Overlay from "../overlay/ui.overlay";
import Submenu from "./ui.submenu";
import Button from "../button";
import TreeView from "../tree_view";
var DX_MENU_CLASS = "dx-menu";
var DX_MENU_VERTICAL_CLASS = DX_MENU_CLASS + "-vertical";
var DX_MENU_HORIZONTAL_CLASS = DX_MENU_CLASS + "-horizontal";
var DX_MENU_ITEM_CLASS = DX_MENU_CLASS + "-item";
var DX_MENU_ITEMS_CONTAINER_CLASS = DX_MENU_CLASS + "-items-container";
var DX_MENU_ITEM_EXPANDED_CLASS = DX_MENU_ITEM_CLASS + "-expanded";
var DX_CONTEXT_MENU_CLASS = "dx-context-menu";
var DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS = DX_CONTEXT_MENU_CLASS + "-container-border";
var DX_CONTEXT_MENU_CONTENT_DELIMITER_CLASS = "dx-context-menu-content-delimiter";
var DX_SUBMENU_CLASS = "dx-submenu";
var DX_STATE_DISABLED_CLASS = "dx-state-disabled";
var DX_STATE_HOVER_CLASS = "dx-state-hover";
var DX_STATE_ACTIVE_CLASS = "dx-state-active";
var DX_ADAPTIVE_MODE_CLASS = DX_MENU_CLASS + "-adaptive-mode";
var DX_ADAPTIVE_HAMBURGER_BUTTON_CLASS = DX_MENU_CLASS + "-hamburger-button";
var DX_ADAPTIVE_MODE_OVERLAY_WRAPPER_CLASS = DX_ADAPTIVE_MODE_CLASS + "-overlay-wrapper";
var FOCUS_UP = "up";
var FOCUS_DOWN = "down";
var FOCUS_LEFT = "left";
var FOCUS_RIGHT = "right";
var SHOW_SUBMENU_OPERATION = "showSubmenu";
var NEXTITEM_OPERATION = "nextItem";
var PREVITEM_OPERATION = "prevItem";
var DEFAULT_DELAY = {
show: 50,
hide: 300
};
var ACTIONS = ["onSubmenuShowing", "onSubmenuShown", "onSubmenuHiding", "onSubmenuHidden", "onItemContextMenu", "onItemClick", "onSelectionChanged", "onItemRendered"];
class Menu extends MenuBase {
_getDefaultOptions() {
return extend(super._getDefaultOptions(), {
orientation: "horizontal",
submenuDirection: "auto",
showFirstSubmenuMode: {
name: "onClick",
delay: {
show: 50,
hide: 300
}
},
hideSubmenuOnMouseLeave: false,
onSubmenuShowing: null,
onSubmenuShown: null,
onSubmenuHiding: null,
onSubmenuHidden: null,
adaptivityEnabled: false
})
}
_setOptionsByReference() {
super._setOptionsByReference();
extend(this._optionsByReference, {
animation: true,
selectedItem: true
})
}
_itemElements() {
var rootMenuElements = super._itemElements();
var submenuElements = this._submenuItemElements();
return rootMenuElements.add(submenuElements)
}
_submenuItemElements() {
var elements = [];
var itemSelector = ".".concat(DX_MENU_ITEM_CLASS);
var currentSubmenu = this._submenus.length && this._submenus[0];
if (currentSubmenu && currentSubmenu.itemsContainer()) {
elements = currentSubmenu.itemsContainer().find(itemSelector)
}
return elements
}
_focusTarget() {
return this.$element()
}
_isMenuHorizontal() {
return "horizontal" === this.option("orientation")
}
_moveFocus(location) {
var $items = this._getAvailableItems();
var isMenuHorizontal = this._isMenuHorizontal();
var $activeItem = this._getActiveItem(true);
var argument;
var operation;
var navigationAction;
var $newTarget;
switch (location) {
case FOCUS_UP:
operation = isMenuHorizontal ? SHOW_SUBMENU_OPERATION : this._getItemsNavigationOperation(PREVITEM_OPERATION);
argument = isMenuHorizontal ? $activeItem : $items;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
case FOCUS_DOWN:
operation = isMenuHorizontal ? SHOW_SUBMENU_OPERATION : this._getItemsNavigationOperation(NEXTITEM_OPERATION);
argument = isMenuHorizontal ? $activeItem : $items;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
case FOCUS_RIGHT:
operation = isMenuHorizontal ? this._getItemsNavigationOperation(NEXTITEM_OPERATION) : SHOW_SUBMENU_OPERATION;
argument = isMenuHorizontal ? $items : $activeItem;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
case FOCUS_LEFT:
operation = isMenuHorizontal ? this._getItemsNavigationOperation(PREVITEM_OPERATION) : SHOW_SUBMENU_OPERATION;
argument = isMenuHorizontal ? $items : $activeItem;
navigationAction = this._getKeyboardNavigationAction(operation, argument);
$newTarget = navigationAction();
break;
default:
return super._moveFocus(location)
}
if ($newTarget && 0 !== $newTarget.length) {
this.option("focusedElement", getPublicElement($newTarget))
}
}
_getItemsNavigationOperation(operation) {
var navOperation = operation;
if (this.option("rtlEnabled")) {
navOperation = operation === PREVITEM_OPERATION ? NEXTITEM_OPERATION : PREVITEM_OPERATION
}
return navOperation
}
_getKeyboardNavigationAction(operation, argument) {
var action = noop;
switch (operation) {
case SHOW_SUBMENU_OPERATION:
if (!argument.hasClass(DX_STATE_DISABLED_CLASS)) {
action = this._showSubmenu.bind(this, argument)
}
break;
case NEXTITEM_OPERATION:
action = this._nextItem.bind(this, argument);
break;
case PREVITEM_OPERATION:
action = this._prevItem.bind(this, argument)
}
return action
}
_clean() {
super._clean();
this.option("templatesRenderAsynchronously") && clearTimeout(this._resizeEventTimer)
}
_visibilityChanged(visible) {
if (visible) {
if (!this._menuItemsWidth) {
this._updateItemsWidthCache()
}
this._dimensionChanged()
}
}
_isAdaptivityEnabled() {
return this.option("adaptivityEnabled") && "horizontal" === this.option("orientation")
}
_updateItemsWidthCache() {
var $menuItems = this.$element().find("ul").first().children("li").children(".".concat(DX_MENU_ITEM_CLASS));
this._menuItemsWidth = this._getSummaryItemsWidth($menuItems, true)
}
_dimensionChanged() {
if (!this._isAdaptivityEnabled()) {
return
}
var containerWidth = this.$element().outerWidth();
this._toggleAdaptiveMode(this._menuItemsWidth > containerWidth)
}
_init() {
super._init();
this._submenus = []
}
_initActions() {
this._actions = {};
each(ACTIONS, (index, action) => {
this._actions[action] = this._createActionByOption(action)
})
}
_initMarkup() {
this._visibleSubmenu = null;
this.$element().addClass(DX_MENU_CLASS);
super._initMarkup();
this.setAria("role", "menubar")
}
_render() {
super._render();
this._initAdaptivity()
}
_renderHamburgerButton() {
this._hamburger = new Button($("<div>").addClass(DX_ADAPTIVE_HAMBURGER_BUTTON_CLASS), {
icon: "menu",
activeStateEnabled: false,
onClick: this._toggleTreeView.bind(this)
});
return this._hamburger.$element()
}
_toggleTreeView(state) {
if (isPlainObject(state)) {
state = !this._overlay.option("visible")
}
this._overlay.option("visible", state);
this._toggleHamburgerActiveState(state)
}
_toggleHamburgerActiveState(state) {
this._hamburger && this._hamburger.$element().toggleClass(DX_STATE_ACTIVE_CLASS, state)
}
_toggleAdaptiveMode(state) {
var $menuItemsContainer = this.$element().find(".".concat(DX_MENU_HORIZONTAL_CLASS));
var $adaptiveElements = this.$element().find(".".concat(DX_ADAPTIVE_MODE_CLASS));
if (state) {
this._hideVisibleSubmenu()
} else {
this._treeView && this._treeView.collapseAll();
this._overlay && this._toggleTreeView(state)
}
$menuItemsContainer.toggle(!state);
$adaptiveElements.toggle(state)
}
_removeAdaptivity() {
if (!this._$adaptiveContainer) {
return
}
this._toggleAdaptiveMode(false);
this._$adaptiveContainer.remove();
this._$adaptiveContainer = null;
this._treeView = null;
this._hamburger = null;
this._overlay = null
}
_treeviewItemClickHandler(e) {
this._actions.onItemClick(e);
if (!e.node.children.length) {
this._toggleTreeView(false)
}
}
_getAdaptiveOverlayOptions() {
var rtl = this.option("rtlEnabled");
var position = rtl ? "right" : "left";
return {
maxHeight: () => getElementMaxHeightByWindow(this.$element()),
deferRendering: false,
shading: false,
animation: false,
closeOnTargetScroll: true,
onHidden: () => {
this._toggleHamburgerActiveState(false)
},
height: "auto",
closeOnOutsideClick: e => !$(e.target).closest(".".concat(DX_ADAPTIVE_HAMBURGER_BUTTON_CLASS)).length,
position: {
collision: "flipfit",
at: "bottom " + position,
my: "top " + position,
of: this._hamburger.$element()
}
}
}
_getTreeViewOptions() {
var menuOptions = {};
each(["rtlEnabled", "width", "accessKey", "activeStateEnabled", "animation", "dataSource", "disabled", "displayExpr", "displayExpr", "focusStateEnabled", "hint", "hoverStateEnabled", "itemsExpr", "items", "itemTemplate", "selectedExpr", "selectionMode", "tabIndex", "visible"], (_, option) => {
menuOptions[option] = this.option(option)
});
each(["onItemContextMenu", "onSelectionChanged"], (_, actionName) => {
menuOptions[actionName] = e => {
this._actions[actionName](e)
}
});
return extend(menuOptions, {
dataSource: this.getDataSource(),
animationEnabled: !!this.option("animation"),
onItemClick: this._treeviewItemClickHandler.bind(this),
onItemExpanded: e => {
this._overlay.repaint();
this._actions.onSubmenuShown(e)
},
onItemCollapsed: e => {
this._overlay.repaint();
this._actions.onSubmenuHidden(e)
},
selectNodesRecursive: false,
selectByClick: this.option("selectByClick"),
expandEvent: "click"
})
}
_initAdaptivity() {
if (!this._isAdaptivityEnabled()) {
return
}
this._$adaptiveContainer = $("<div>").addClass(DX_ADAPTIVE_MODE_CLASS);
var $hamburger = this._renderHamburgerButton();
this._treeView = this._createComponent($("<div>"), TreeView, this._getTreeViewOptions());
this._overlay = this._createComponent($("<div>"), Overlay, this._getAdaptiveOverlayOptions());
this._overlay.$content().append(this._treeView.$element()).addClass(DX_ADAPTIVE_MODE_CLASS).addClass(this.option("cssClass"));
this._overlay.$wrapper().addClass(DX_ADAPTIVE_MODE_OVERLAY_WRAPPER_CLASS);
this._$adaptiveContainer.append($hamburger);
this._$adaptiveContainer.append(this._overlay.$element());
this.$element().append(this._$adaptiveContainer);
this._updateItemsWidthCache();
this._dimensionChanged()
}
_getDelay(delayType) {
var delay = this.option("showFirstSubmenuMode").delay;
if (!isDefined(delay)) {
return DEFAULT_DELAY[delayType]
} else {
return isObject(delay) ? delay[delayType] : delay
}
}
_keyboardHandler(e) {
return super._keyboardHandler(e, !!this._visibleSubmenu)
}
_renderContainer() {
var $wrapper = $("<div>");
$wrapper.appendTo(this.$element()).addClass(this._isMenuHorizontal() ? DX_MENU_HORIZONTAL_CLASS : DX_MENU_VERTICAL_CLASS);
return super._renderContainer($wrapper)
}
_renderSubmenuItems(node, $itemFrame) {
var submenu = this._createSubmenu(node, $itemFrame);
this._submenus.push(submenu);
this._renderBorderElement($itemFrame);
return submenu
}
_getKeyboardListeners() {
return super._getKeyboardListeners().concat(this._visibleSubmenu)
}
_createSubmenu(node, $rootItem) {
var $submenuContainer = $("<div>").addClass(DX_CONTEXT_MENU_CLASS).appendTo($rootItem);
var items = this._getChildNodes(node);
var result = this._createComponent($submenuContainer, Submenu, extend(this._getSubmenuOptions(), {
_dataAdapter: this._dataAdapter,
_parentKey: node.internalFields.key,
items: items,
onHoverStart: this._clearTimeouts.bind(this),
position: this.getSubmenuPosition($rootItem)
}));
this._attachSubmenuHandlers($rootItem, result);
return result
}
_getSubmenuOptions() {
var $submenuTarget = $("<div>");
var isMenuHorizontal = this._isMenuHorizontal();
return {
itemTemplate: this.option("itemTemplate"),
target: $submenuTarget,
orientation: this.option("orientation"),
selectionMode: this.option("selectionMode"),
cssClass: this.option("cssClass"),
selectByClick: this.option("selectByClick"),
hoverStateEnabled: this.option("hoverStateEnabled"),
activeStateEnabled: this.option("activeStateEnabled"),
focusStateEnabled: this.option("focusStateEnabled"),
animation: this.option("animation"),
showSubmenuMode: this.option("showSubmenuMode"),
displayExpr: this.option("displayExpr"),
disabledExpr: this.option("disabledExpr"),
selectedExpr: this.option("selectedExpr"),
itemsExpr: this.option("itemsExpr"),
onFocusedItemChanged: e => {
if (!e.component.option("visible")) {
return
}
this.option("focusedElement", e.component.option("focusedElement"))
},
onSelectionChanged: this._nestedItemOnSelectionChangedHandler.bind(this),
onItemClick: this._nestedItemOnItemClickHandler.bind(this),
onItemRendered: this._nestedItemOnItemRenderedHandler.bind(this),
onLeftFirstItem: isMenuHorizontal ? null : this._moveMainMenuFocus.bind(this, PREVITEM_OPERATION),
onLeftLastItem: isMenuHorizontal ? null : this._moveMainMenuFocus.bind(this, NEXTITEM_OPERATION),
onCloseRootSubmenu: this._moveMainMenuFocus.bind(this, isMenuHorizontal ? PREVITEM_OPERATION : null),
onExpandLastSubmenu: isMenuHorizontal ? this._moveMainMenuFocus.bind(this, NEXTITEM_OPERATION) : null
}
}
_getShowFirstSubmenuMode() {
if (!this._isDesktopDevice()) {
return "onClick"
}
var optionValue = this.option("showFirstSubmenuMode");
return isObject(optionValue) ? optionValue.name : optionValue
}
_moveMainMenuFocus(direction) {
var $items = this._getAvailableItems();
var itemCount = $items.length;
var $currentItem = $items.filter(".".concat(DX_MENU_ITEM_EXPANDED_CLASS)).eq(0);
var itemIndex = $items.index($currentItem);
this._hideSubmenu(this._visibleSubmenu);
itemIndex += direction === PREVITEM_OPERATION ? -1 : 1;
if (itemIndex >= itemCount) {
itemIndex = 0
} else if (itemIndex < 0) {
itemIndex = itemCount - 1
}
var $newItem = $items.eq(itemIndex);
this.option("focusedElement", getPublicElement($newItem))
}
_nestedItemOnSelectionChangedHandler(args) {
var selectedItem = args.addedItems.length && args.addedItems[0];
var submenu = Submenu.getInstance(args.element);
var onSelectionChanged = this._actions.onSelectionChanged;
onSelectionChanged(args);
selectedItem && this._clearSelectionInSubmenus(selectedItem[0], submenu);
this._clearRootSelection();
this._setOptionWithoutOptionChange("selectedItem", selectedItem)
}
_clearSelectionInSubmenus(item, targetSubmenu) {
var cleanAllSubmenus = !arguments.length;
each(this._submenus, (index, submenu) => {
var $submenu = submenu._itemContainer();
var isOtherItem = !$submenu.is(targetSubmenu && targetSubmenu._itemContainer());
var $selectedItem = $submenu.find(".".concat(this._selectedItemClass()));
if (isOtherItem && $selectedItem.length || cleanAllSubmenus) {
$selectedItem.removeClass(this._selectedItemClass());
var selectedItemData = this._getItemData($selectedItem);
if (selectedItemData) {
selectedItemData.selected = false
}
submenu._clearSelectedItems()
}
})
}
_clearRootSelection() {
var $prevSelectedItem = this.$element().find(".".concat(DX_MENU_ITEMS_CONTAINER_CLASS)).first().children().children().filter(".".concat(this._selectedItemClass()));
if ($prevSelectedItem.length) {
var prevSelectedItemData = this._getItemData($prevSelectedItem);
prevSelectedItemData.selected = false;
$prevSelectedItem.removeClass(this._selectedItemClass())
}
}
_nestedItemOnItemClickHandler(e) {
this._actions.onItemClick(e)
}
_nestedItemOnItemRenderedHandler(e) {
this._actions.onItemRendered(e)
}
_attachSubmenuHandlers($rootItem, submenu) {
var $submenuOverlayContent = submenu.getOverlayContent();
var submenus = $submenuOverlayContent.find(".".concat(DX_SUBMENU_CLASS));
var submenuMouseLeaveName = addNamespace(hoverEventEnd, this.NAME + "_submenu");
submenu.option({
onShowing: this._submenuOnShowingHandler.bind(this, $rootItem, submenu),
onShown: this._submenuOnShownHandler.bind(this, $rootItem, submenu),
onHiding: this._submenuOnHidingHandler.bind(this, $rootItem, submenu),
onHidden: this._submenuOnHiddenHandler.bind(this, $rootItem, submenu)
});
each(submenus, (index, submenu) => {
eventsEngine.off(submenu, submenuMouseLeaveName);
eventsEngine.on(submenu, submenuMouseLeaveName, null, this._submenuMouseLeaveHandler.bind(this, $rootItem))
})
}
_submenuOnShowingHandler($rootItem, submenu) {
var $border = $rootItem.children(".".concat(DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS));
this._actions.onSubmenuShowing({
rootItem: getPublicElement($rootItem),
submenu: submenu
});
$border.show();
$rootItem.addClass(DX_MENU_ITEM_EXPANDED_CLASS)
}
_submenuOnShownHandler($rootItem, submenu) {
this._actions.onSubmenuShown({
rootItem: getPublicElement($rootItem),
submenu: submenu
})
}
_submenuOnHidingHandler($rootItem, submenu, eventArgs) {
var $border = $rootItem.children(".".concat(DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS));
var args = eventArgs;
args.rootItem = getPublicElement($rootItem);
args.submenu = submenu;
this._actions.onSubmenuHiding(args);
eventArgs = args;
if (!eventArgs.cancel) {
if (this._visibleSubmenu === submenu) {
this._visibleSubmenu = null
}
$border.hide();
$rootItem.removeClass(DX_MENU_ITEM_EXPANDED_CLASS)
}
}
_submenuOnHiddenHandler($rootItem, submenu) {
this._actions.onSubmenuHidden({
rootItem: getPublicElement($rootItem),
submenu: submenu
})
}
_submenuMouseLeaveHandler($rootItem, eventArgs) {
var target = $(eventArgs.relatedTarget).parents(".".concat(DX_CONTEXT_MENU_CLASS))[0];
var contextMenu = this._getSubmenuByRootElement($rootItem).getOverlayContent()[0];
if (this.option("hideSubmenuOnMouseLeave") && target !== contextMenu) {
this._clearTimeouts();
setTimeout(this._hideSubmenuAfterTimeout.bind(this), this._getDelay("hide"))
}
}
_hideSubmenuAfterTimeout() {
if (!this._visibleSubmenu) {
return
}
var isRootItemHovered = $(this._visibleSubmenu.$element().context).hasClass(DX_STATE_HOVER_CLASS);
var isSubmenuItemHovered = this._visibleSubmenu.getOverlayContent().find(".".concat(DX_STATE_HOVER_CLASS)).length;
var hoveredElementFromSubMenu = this._visibleSubmenu.getOverlayContent().get(0).querySelector(":hover");
if (!hoveredElementFromSubMenu && !isSubmenuItemHovered && !isRootItemHovered) {
this._visibleSubmenu.hide()
}
}
_getSubmenuByRootElement($rootItem) {
if (!$rootItem) {
return false
}
var $submenu = $rootItem.children(".".concat(DX_CONTEXT_MENU_CLASS));
return $submenu.length && Submenu.getInstance($submenu)
}
getSubmenuPosition($rootItem) {
var isHorizontalMenu = this._isMenuHorizontal();
var submenuDirection = this.option("submenuDirection").toLowerCase();
var rtlEnabled = this.option("rtlEnabled");
var submenuPosition = {
collision: "flip",
of: $rootItem
};
switch (submenuDirection) {
case "leftortop":
submenuPosition.at = "left top";
submenuPosition.my = isHorizontalMenu ? "left bottom" : "right top";
break;
case "rightorbottom":
submenuPosition.at = isHorizontalMenu ? "left bottom" : "right top";
submenuPosition.my = "left top";
break;
default:
if (isHorizontalMenu) {
submenuPosition.at = rtlEnabled ? "right bottom" : "left bottom";
submenuPosition.my = rtlEnabled ? "right top" : "left top"
} else {
submenuPosition.at = rtlEnabled ? "left top" : "right top";
submenuPosition.my = rtlEnabled ? "right top" : "left top"
}
}
return submenuPosition
}
_renderBorderElement($item) {
$("<div>").appendTo($item).addClass(DX_CONTEXT_MENU_CONTAINER_BORDER_CLASS).hide()
}
_itemPointerDownHandler(e) {
var $target = $(e.target);
var $closestItem = $target.closest(this._itemElements());
if ($closestItem.hasClass("dx-menu-item-has-submenu")) {
this.option("focusedElement", null);
return
}
super._itemPointerDownHandler(e)
}
_hoverStartHandler(e) {
var mouseMoveEventName = addNamespace(pointerEvents.move, this.NAME);
var $item = this._getItemElementByEventArgs(e);
var node = this._dataAdapter.getNodeByItem(this._getItemData($item));
var isSelectionActive = isDefined(e.buttons) && 1 === e.buttons || !isDefined(e.buttons) && 1 === e.which;
if (this._isItemDisabled($item)) {
return
}
eventsEngine.off($item, mouseMoveEventName);
if (!this._hasChildren(node)) {
this._showSubmenuTimer = setTimeout(this._hideSubmenuAfterTimeout.bind(this), this._getDelay("hide"));
return
}
if ("onHover" === this._getShowFirstSubmenuMode() && !isSelectionActive) {
var submenu = this._getSubmenuByElement($item);
this._clearTimeouts();
if (!submenu.isOverlayVisible()) {
eventsEngine.on($item, mouseMoveEventName, this._itemMouseMoveHandler.bind(this));
this._showSubmenuTimer = this._getDelay("hide")
}
}
}
_hoverEndHandler(eventArg) {
var $item = this._getItemElementByEventArgs(eventArg);
var relatedTarget = $(eventArg.relatedTarget);
super._hoverEndHandler(eventArg);
this._clearTimeouts();
if (this._isItemDisabled($item)) {
return
}
if (relatedTarget.hasClass(DX_CONTEXT_MENU_CONTENT_DELIMITER_CLASS)) {
return
}
if (this.option("hideSubmenuOnMouseLeave") && !relatedTarget.hasClass(DX_MENU_ITEMS_CONTAINER_CLASS)) {
this._hideSubmenuTimer = setTimeout(() => {
this._hideSubmenuAfterTimeout()
}, this._getDelay("hide"))
}
}
_hideVisibleSubmenu() {
if (!this._visibleSubmenu) {
return false
}
this._hideSubmenu(this._visibleSubmenu);
return true
}
_showSubmenu($itemElement) {
var submenu = this._getSubmenuByElement($itemElement);
if (this._visibleSubmenu !== submenu) {
this._hideVisibleSubmenu()
}
if (submenu) {
this._clearTimeouts();
submenu.show();
this.option("focusedElement", submenu.option("focusedElement"))
}
this._visibleSubmenu = submenu;
this._hoveredRootItem = $itemElement
}
_hideSubmenu(submenu) {
submenu && submenu.hide();
if (this._visibleSubmenu === submenu) {
this._visibleSubmenu = null
}
this._hoveredRootItem = null
}
_itemMouseMoveHandler(e) {
if (e.pointers && e.pointers.length) {
return
}
var $item = $(e.currentTarget);
if (!isDefined(this._showSubmenuTimer)) {
return
}
this._clearTimeouts();
this._showSubmenuTimer = setTimeout(() => {
var submenu = this._getSubmenuByElement($item);
if (submenu && !submenu.isOverlayVisible()) {
this._showSubmenu($item)
}
}, this._getDelay("show"))
}
_clearTimeouts() {
clearTimeout(this._hideSubmenuTimer);
clearTimeout(this._showSubmenuTimer)
}
_getSubmenuByElement($itemElement, itemData) {
var submenu = this._getSubmenuByRootElement($itemElement);
if (submenu) {
return submenu
} else {
itemData = itemData || this._getItemData($itemElement);
var node = this._dataAdapter.getNodeByItem(itemData);
return this._hasChildren(node) && this._renderSubmenuItems(node, $itemElement)
}
}
_updateSubmenuVisibilityOnClick(actionArgs) {
var args = actionArgs.args.length && actionArgs.args[0];
if (!args || this._disabledGetter(args.itemData)) {
return
}
var $itemElement = $(args.itemElement);
var currentSubmenu = this._getSubmenuByElement($itemElement, args.itemData);
this._updateSelectedItemOnClick(actionArgs);
if (this._visibleSubmenu) {
if (this._visibleSubmenu === currentSubmenu) {
if ("onClick" === this.option("showFirstSubmenuMode")) {
this._hideSubmenu(this._visibleSubmenu)
}
return
} else {
this._hideSubmenu(this._visibleSubmenu)
}
}
if (!currentSubmenu) {
return
}
if (!currentSubmenu.isOverlayVisible()) {
this._showSubmenu($itemElement);
return
}
}
_optionChanged(args) {
if (ACTIONS.indexOf(args.name) >= 0) {
this._initActions();
return
}
switch (args.name) {
case "orientation":
case "submenuDirection":
this._invalidate();
break;
case "showFirstSubmenuMode":
case "hideSubmenuOnMouseLeave":
break;
case "showSubmenuMode":
this._changeSubmenusOption(args.name, args.value);
break;
case "adaptivityEnabled":
args.value ? this._initAdaptivity() : this._removeAdaptivity();
break;
case "width":
if (this._isAdaptivityEnabled()) {
this._treeView.option(args.name, args.value);
this._overlay.option(args.name, args.value)
}
super._optionChanged(args);
this._dimensionChanged();
break;
case "animation":
if (this._isAdaptivityEnabled()) {
this._treeView.option("animationEnabled", !!args.value)
}
super._optionChanged(args);
break;
default:
if (this._isAdaptivityEnabled()) {
this._treeView.option(args.name, args.value)
}
super._optionChanged(args)
}
}
_changeSubmenusOption(name, value) {
each(this._submenus, (index, submenu) => {
submenu.option(name, value)
})
}
selectItem(itemElement) {
this._hideSubmenu(this._visibleSubmenu);
super.selectItem(itemElement)
}
unselectItem(itemElement) {
this._hideSubmenu(this._visibleSubmenu);
super.selectItem(itemElement)
}
}
registerComponent("dxMenu", Menu);
export default Menu;